There are quite a few posts about this in the support forum. You must have been one of the luckier ones that it lasted this long. Facebook has stopped working on Miranda due to FB enabling encryption on both ends. Miranda has no way to get around that. I can see my contacts online/offline status in Miranda NG but haven't been able to send them messages in months. FB has been rolling out encryption user by user so you and your contacts must have finally been "upgraded".
